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嵌入式Linux实时性分析及其改造    

Analysis and Amelioration of Embedded Linux Real-Time Character

文献类型:期刊文献

中文题名:嵌入式Linux实时性分析及其改造

英文题名:Analysis and Amelioration of Embedded Linux Real-Time Character

作者:李在林[1];韩宏克[2]

第一作者:李在林

机构:[1]新乡学院物理系;[2]中国电波传播研究所

第一机构:新乡学院物理与电子工程学院

年份:2010

卷号:27

期号:2

起止页码:66-70

中文期刊名:新乡学院学报

语种:中文

中文关键词:嵌入式Linux;实时性改进;双内核法;RTLinux

外文关键词:embedded Linux; improvement of real-time character; method of two kernels; RTLinux

摘要:运用中断延迟的方法,测试了嵌入式Linux实时性,分析了Linux实时性弱的原因。提出了几种增强实时性的方法,介绍了在嵌入式Linux系统底层安装1个实时内核RTLinux法,即双内核法。并测试了RTLinux的实时性,发现其大为改观,改造后的嵌入式Linux系统可以满足强实时性系统的要求。
In the thesis, real-time character of embedded Linux was tested via the approach of interrupt delay, and the causes of the shortage of Linux real-time character was analyzed. Thereby, some methods of the improvement of Linux real-time character were introduced, especially the method of two kernels-setting a real-time kernel in the bottom of embedded Linux system. Furthermore, RTLinux real-time performance was tested, and its performance was very satisfactory. In short, the improved embedded Linux system displayed a very good real-time performance which could meet the requirements of the system.

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